Weather & wind
Essaouira in September: weather, wind and sea
September in Essaouira: 8.4 hours of sunshine a day, 1 rainy day and 11 windy days above 15 knots.
Climate normals · 1991–2020
- Temperature
- 18–23 °C
- Mean wind (daily max)
- 13 kn · N
- Days of wind > 15 kn
- 11
- Sunshine
- 8.4 h/day (1961–1990)
- Rainy days
- 1 · 4.3 mm
Source: WMO/OMM 1991–2020 (DMN, station 60220) · DWD 1961–1990 · Open-Meteo ERA5/IFS (CC BY 4.0)
Temperatures in September
In September, the mean high is 22.6 °C and the mean low 18 °C, a gap of 4.6 °C between afternoon and night. It is the warmest month of the year, 2 °C above the year’s average high (20.6 °C). Nights run 2.9 °C warmer than the year’s average low (15.1 °C). The thermometer drops on either side: 22.4 °C in August, 22.2 °C in October. A light jumper is enough in the evening, more so near the water.
Wind in September
The wind passes 15 knots on about 11 days out of 30, against 12 days in an average month. August has 16 days, October 8. It blows mostly from the north, and its daily peak averages 13 knots. These figures are our own count over thirty years of modelled weather data (the ERA5 reanalysis, then the ECMWF’s IFS model from 2017), 1991 to 2020. Over 2011–2020, the Essaouira station’s hourly reports count 13 days at 15 knots or more in the month. The two sources differ here by more than 2 days. For kitesurfing it is a shoulder month: leave a few spare days.
Rain and sunshine in September
Rain is rare: the normal counts 0.9 days with 1 mm or more on average, 4.3 mm over the month. That is 1% of the year’s 299.7 mm. August gets 0.8 mm, October 33.3 mm.
The sun shines for 8.4 hours a day on average, from the station’s 1961–1990 records. That is 68% of the 12 hours or so the sun is up. The year averages 8.2 hours a day.